Characterization of ilmenite used as oxygen carrier in a 100kW chemical-looping combustor for solid fuels

Pavleta Knutsson and Carl Linderholm

Applied Energy, 2015, vol. 157, issue C, 368-373

Abstract: Chemical-looping combustion (CLC) is considered to be the most promising and economically viable process for carbon dioxide capture. The oxygen carrier has a central role in the chemical-looping combustion process. Ilmenite, a natural mineral composed of FeTiO3, has been extensively used as oxygen carrier in CLC systems due to its availability, relatively low cost and demonstrated reactivity. During the looping process ilmenite undergoes a series of chemical and mechanical transformations that eventually lead to the break-down of particles into smaller fragments, which are unfit for use in circulated fluidized bed (CFB) applications.

Keywords: Chemical-looping combustion; 100kW CLC unit; Oxygen carrier; Ilmenite; Fe segregation (search for similar items in EconPapers)
Date: 2015
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Citations: View citations in EconPapers (6)

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DOI: 10.1016/j.apenergy.2015.05.122

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